{
  "contract": {
    "agency_name": "Department of Home Affairs",
    "amendment_count": 6,
    "category_code": "25111500",
    "contract_end_date": "2030-03-16",
    "contract_id": "CN4123587",
    "contract_start_date": "2024-12-20",
    "currency": "AUD",
    "current_reported_value": "566143835.50",
    "description": "Cape Class Patrol Boats",
    "events": [
      {
        "absolute_change": null,
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-54503d70ceb4454fb05027004e052293-a7876773355f3005957dfb8e584455bd",
        "after_source_hash": "b855c638fbb18293dc3406c4cd21fce6f0178d0ef129e7efd7ea30bbad8b3580",
        "before_release_id": "prod-54503d70ceb4454fb05027004e052293-c7a8b1b7e38f3995b51042caa0eeb025",
        "before_source_hash": "357973f1bb66800c73d62d061440e6896ed167d713fdc041fae8aa154827d6cd",
        "contract_id": "CN4123587",
        "detected_at": "2026-07-16T06:11:06Z",
        "direction": "changed",
        "duration_change_days": null,
        "event_id": "364b1a0a665a3aaa38b46c4f5a67b1b651519ee2093deee7bff0a3841da006db",
        "field_label": "Supplier Name",
        "field_name": "supplier_name",
        "new_value": "AUSTAL SHIPS PTY LTD (AUD)",
        "notice_id": "CN4123587-A1",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/b07c7896-a8a9-476f-b4c3-d5345361c213",
        "old_value": "AUSTAL SHIPS PTY LTD",
        "percentage_change": null,
        "source_license": "https://creativecommons.org/licenses/by/3.0/au/",
        "source_publisher": "Australian Government Department of Finance",
        "source_url": "https://api.tenders.gov.au/ocds/findById/CN4123587",
        "summary": "Supplier changed."
      },
      {
        "absolute_change": null,
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-54503d70ceb4454fb05027004e052293-a7876773355f3005957dfb8e584455bd",
        "after_source_hash": "b855c638fbb18293dc3406c4cd21fce6f0178d0ef129e7efd7ea30bbad8b3580",
        "before_release_id": "prod-54503d70ceb4454fb05027004e052293-c7a8b1b7e38f3995b51042caa0eeb025",
        "before_source_hash": "357973f1bb66800c73d62d061440e6896ed167d713fdc041fae8aa154827d6cd",
        "contract_id": "CN4123587",
        "detected_at": "2026-07-16T06:11:06Z",
        "direction": "reduction",
        "duration_change_days": -713,
        "event_id": "43657b18202ae9ac54dfedba527df0a319c7804818df67add857bb8c477cff8c",
        "field_label": "Contract End Date",
        "field_name": "contract_end_date",
        "new_value": "2028-04-02",
        "notice_id": "CN4123587-A1",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/b07c7896-a8a9-476f-b4c3-d5345361c213",
        "old_value": "2030-03-16",
        "percentage_change": null,
        "source_license": "https://creativecommons.org/licenses/by/3.0/au/",
        "source_publisher": "Australian Government Department of Finance",
        "source_url": "https://api.tenders.gov.au/ocds/findById/CN4123587",
        "summary": "Contract end date shortened by 713 days."
      },
      {
        "absolute_change": "-1598336.80",
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-54503d70ceb4454fb05027004e052293-a7876773355f3005957dfb8e584455bd",
        "after_source_hash": "b855c638fbb18293dc3406c4cd21fce6f0178d0ef129e7efd7ea30bbad8b3580",
        "before_release_id": "prod-54503d70ceb4454fb05027004e052293-c7a8b1b7e38f3995b51042caa0eeb025",
        "before_source_hash": "357973f1bb66800c73d62d061440e6896ed167d713fdc041fae8aa154827d6cd",
        "contract_id": "CN4123587",
        "detected_at": "2026-07-16T06:11:06Z",
        "direction": "decrease",
        "duration_change_days": null,
        "event_id": "be2f02089a99637898e3f32f124a7a39992ca6dea8b51d3dcd3a8ff06a209d29",
        "field_label": "Reported Value",
        "field_name": "reported_value",
        "new_value": "161651012.60",
        "notice_id": "CN4123587-A1",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/b07c7896-a8a9-476f-b4c3-d5345361c213",
        "old_value": "163249349.40",
        "percentage_change": "-0.98",
        "source_license": "https://creativecommons.org/licenses/by/3.0/au/",
        "source_publisher": "Australian Government Department of Finance",
        "source_url": "https://api.tenders.gov.au/ocds/findById/CN4123587",
        "summary": "Reported contract value decreased by $1,598,336.80 (-0.98%)."
      },
      {
        "absolute_change": null,
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-54503d70ceb4454fb05027004e052293-a7876773355f3005957dfb8e584455bd",
        "after_source_hash": "b855c638fbb18293dc3406c4cd21fce6f0178d0ef129e7efd7ea30bbad8b3580",
        "before_release_id": "prod-54503d70ceb4454fb05027004e052293-c7a8b1b7e38f3995b51042caa0eeb025",
        "before_source_hash": "357973f1bb66800c73d62d061440e6896ed167d713fdc041fae8aa154827d6cd",
        "contract_id": "CN4123587",
        "detected_at": "2026-07-16T06:11:06Z",
        "direction": "changed",
        "duration_change_days": null,
        "event_id": "e4c2ff32be8c1add7a87e43fe4bf2f890212534e9efeda084755e4c404d67a3a",
        "field_label": "Title",
        "field_name": "title",
        "new_value": "0070038162",
        "notice_id": "CN4123587-A1",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/b07c7896-a8a9-476f-b4c3-d5345361c213",
        "old_value": "0070038162 & 0070040680 & 0070041177",
        "percentage_change": null,
        "source_license": "https://creativecommons.org/licenses/by/3.0/au/",
        "source_publisher": "Australian Government Department of Finance",
        "source_url": "https://api.tenders.gov.au/ocds/findById/CN4123587",
        "summary": "Reference changed."
      },
      {
        "absolute_change": null,
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-54503d70ceb4454fb05027004e052293-66c099a0c97633e0bfc7b519750ab779",
        "after_source_hash": "73f570662690ff18f7b7b9335ced88ed417813873d922f718073424454da4648",
        "before_release_id": "prod-54503d70ceb4454fb05027004e052293-a7876773355f3005957dfb8e584455bd",
        "before_source_hash": "b855c638fbb18293dc3406c4cd21fce6f0178d0ef129e7efd7ea30bbad8b3580",
        "contract_id": "CN4123587",
        "detected_at": "2026-07-16T06:11:06Z",
        "direction": "changed",
        "duration_change_days": null,
        "event_id": "12649c507fede1d307dad79c6d88c654762480dff10634c9c431656890a8b8ad",
        "field_label": "Title",
        "field_name": "title",
        "new_value": "0070038162 & 0070040680 & 0070041177",
        "notice_id": "CN4123587-A2",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/724c8934-6cf5-4c73-a466-3b252f425de3",
        "old_value": "0070038162",
        "percentage_change": null,
        "source_license": "https://creativecommons.org/licenses/by/3.0/au/",
        "source_publisher": "Australian Government Department of Finance",
        "source_url": "https://api.tenders.gov.au/ocds/findById/CN4123587",
        "summary": "Reference changed."
      },
      {
        "absolute_change": null,
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-54503d70ceb4454fb05027004e052293-66c099a0c97633e0bfc7b519750ab779",
        "after_source_hash": "73f570662690ff18f7b7b9335ced88ed417813873d922f718073424454da4648",
        "before_release_id": "prod-54503d70ceb4454fb05027004e052293-a7876773355f3005957dfb8e584455bd",
        "before_source_hash": "b855c638fbb18293dc3406c4cd21fce6f0178d0ef129e7efd7ea30bbad8b3580",
        "contract_id": "CN4123587",
        "detected_at": "2026-07-16T06:11:06Z",
        "direction": "extension",
        "duration_change_days": 713,
        "event_id": "75ac086673ae71e78def383db5192b3dfbc4631c8aab40783fbb796496451780",
        "field_label": "Contract End Date",
        "field_name": "contract_end_date",
        "new_value": "2030-03-16",
        "notice_id": "CN4123587-A2",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/724c8934-6cf5-4c73-a466-3b252f425de3",
        "old_value": "2028-04-02",
        "percentage_change": null,
        "source_license": "https://creativecommons.org/licenses/by/3.0/au/",
        "source_publisher": "Australian Government Department of Finance",
        "source_url": "https://api.tenders.gov.au/ocds/findById/CN4123587",
        "summary": "Contract end date extended by 713 days."
      },
      {
        "absolute_change": "18631520.67",
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-54503d70ceb4454fb05027004e052293-66c099a0c97633e0bfc7b519750ab779",
        "after_source_hash": "73f570662690ff18f7b7b9335ced88ed417813873d922f718073424454da4648",
        "before_release_id": "prod-54503d70ceb4454fb05027004e052293-a7876773355f3005957dfb8e584455bd",
        "before_source_hash": "b855c638fbb18293dc3406c4cd21fce6f0178d0ef129e7efd7ea30bbad8b3580",
        "contract_id": "CN4123587",
        "detected_at": "2026-07-16T06:11:06Z",
        "direction": "increase",
        "duration_change_days": null,
        "event_id": "dc62311f1af021ec2a1e974830168fc623e060f2f508f834c46bc176036d1af7",
        "field_label": "Reported Value",
        "field_name": "reported_value",
        "new_value": "180282533.27",
        "notice_id": "CN4123587-A2",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/724c8934-6cf5-4c73-a466-3b252f425de3",
        "old_value": "161651012.60",
        "percentage_change": "11.53",
        "source_license": "https://creativecommons.org/licenses/by/3.0/au/",
        "source_publisher": "Australian Government Department of Finance",
        "source_url": "https://api.tenders.gov.au/ocds/findById/CN4123587",
        "summary": "Reported contract value increased by $18,631,520.67 (+11.53%)."
      },
      {
        "absolute_change": "199980.17",
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-54503d70ceb4454fb05027004e052293-a780f1e456b030e1bfd4deaa6b12572f",
        "after_source_hash": "303e08de4bfc1a76b6e55a7b551f8824127173bc73b16597f8c2cb2069ec52e5",
        "before_release_id": "prod-54503d70ceb4454fb05027004e052293-66c099a0c97633e0bfc7b519750ab779",
        "before_source_hash": "73f570662690ff18f7b7b9335ced88ed417813873d922f718073424454da4648",
        "contract_id": "CN4123587",
        "detected_at": "2026-07-16T06:11:06Z",
        "direction": "increase",
        "duration_change_days": null,
        "event_id": "f6f6e125539dd68367b340a2e42b6a96dbb11ae3ef4b9992331d2cecd76a5281",
        "field_label": "Reported Value",
        "field_name": "reported_value",
        "new_value": "180482513.44",
        "notice_id": "CN4123587-A3",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/d8a49365-2982-405d-9e1a-3ca41cd0e9b7",
        "old_value": "180282533.27",
        "percentage_change": "0.11",
        "source_license": "https://creativecommons.org/licenses/by/3.0/au/",
        "source_publisher": "Australian Government Department of Finance",
        "source_url": "https://api.tenders.gov.au/ocds/findById/CN4123587",
        "summary": "Reported contract value increased by $199,980.17 (+0.11%)."
      },
      {
        "absolute_change": "11417470.47",
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-54503d70ceb4454fb05027004e052293-1ff9a5d034403ceeaa3a41ff00e1490d",
        "after_source_hash": "2076eda4974e10744b39eb109acbbc5af290faaffef2259e430bc9dc6d3dae96",
        "before_release_id": "prod-54503d70ceb4454fb05027004e052293-a780f1e456b030e1bfd4deaa6b12572f",
        "before_source_hash": "303e08de4bfc1a76b6e55a7b551f8824127173bc73b16597f8c2cb2069ec52e5",
        "contract_id": "CN4123587",
        "detected_at": "2026-07-16T06:11:06Z",
        "direction": "increase",
        "duration_change_days": null,
        "event_id": "458449c598667807ee19f91152f1e6485c77252636f98b3ca6072cdc6d7e1742",
        "field_label": "Reported Value",
        "field_name": "reported_value",
        "new_value": "191899983.91",
        "notice_id": "CN4123587-A4",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/676eb61a-823a-46fd-a743-b6e5201cc1f3",
        "old_value": "180482513.44",
        "percentage_change": "6.33",
        "source_license": "https://creativecommons.org/licenses/by/3.0/au/",
        "source_publisher": "Australian Government Department of Finance",
        "source_url": "https://api.tenders.gov.au/ocds/findById/CN4123587",
        "summary": "Reported contract value increased by $11,417,470.47 (+6.33%)."
      },
      {
        "absolute_change": "180482513.44",
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-54503d70ceb4454fb05027004e052293-2ecb4e6f88b934668cbe7922d388e6ec",
        "after_source_hash": "7e80a171ee14cb62b514dd281d3541b6ed4dd789ec538fd3f1a53fe36ac771c2",
        "before_release_id": "prod-54503d70ceb4454fb05027004e052293-1ff9a5d034403ceeaa3a41ff00e1490d",
        "before_source_hash": "2076eda4974e10744b39eb109acbbc5af290faaffef2259e430bc9dc6d3dae96",
        "contract_id": "CN4123587",
        "detected_at": "2026-07-16T06:11:06Z",
        "direction": "increase",
        "duration_change_days": null,
        "event_id": "00379819423167c1a959f540a88636df123252a6269d32477f0787e4c24e489e",
        "field_label": "Reported Value",
        "field_name": "reported_value",
        "new_value": "372382497.35",
        "notice_id": "CN4123587-A5",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/13db38e6-2747-429f-abd9-5084ed30c9e5",
        "old_value": "191899983.91",
        "percentage_change": "94.05",
        "source_license": "https://creativecommons.org/licenses/by/3.0/au/",
        "source_publisher": "Australian Government Department of Finance",
        "source_url": "https://api.tenders.gov.au/ocds/findById/CN4123587",
        "summary": "Reported contract value increased by $180,482,513.44 (+94.05%)."
      },
      {
        "absolute_change": "193761338.15",
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-54503d70ceb4454fb05027004e052293-3b56c9986dbe35fbaf746333be58529d",
        "after_source_hash": "7cdbb39a989c3bae5d6501661c62e948df297341caa5266f931d7886c2dead96",
        "before_release_id": "prod-54503d70ceb4454fb05027004e052293-2ecb4e6f88b934668cbe7922d388e6ec",
        "before_source_hash": "7e80a171ee14cb62b514dd281d3541b6ed4dd789ec538fd3f1a53fe36ac771c2",
        "contract_id": "CN4123587",
        "detected_at": "2026-07-16T06:11:06Z",
        "direction": "increase",
        "duration_change_days": null,
        "event_id": "d0b63d051b211b0f25ad87ad670478f3bcb1a78909b3ae0e6fe10dfc6afbb6dd",
        "field_label": "Reported Value",
        "field_name": "reported_value",
        "new_value": "566143835.50",
        "notice_id": "CN4123587-A6",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/b3f4aa03-7641-45e2-9f70-d19ee6f378c7",
        "old_value": "372382497.35",
        "percentage_change": "52.03",
        "source_license": "https://creativecommons.org/licenses/by/3.0/au/",
        "source_publisher": "Australian Government Department of Finance",
        "source_url": "https://api.tenders.gov.au/ocds/findById/CN4123587",
        "summary": "Reported contract value increased by $193,761,338.15 (+52.03%)."
      }
    ],
    "evidence_path": "evidence/CN4123587.json",
    "latest_modified_at": "2026-07-16T06:11:06Z",
    "notice_id": "CN4123587-A6",
    "official_record_url": "https://www.tenders.gov.au/Cn/Show/b3f4aa03-7641-45e2-9f70-d19ee6f378c7",
    "original_reported_value": "163249349.40",
    "procurement_method": "Limited tender",
    "source_url": "https://api.tenders.gov.au/ocds/findById/CN4123587",
    "supplier_name": "AUSTAL SHIPS PTY LTD (AUD)",
    "title": "0070038162 & 0070040680 & 0070041177",
    "value_change": "402894486.10",
    "value_change_percentage": "246.80",
    "versions": [
      {
        "agency_name": "Department of Home Affairs",
        "category_code": "25111500",
        "contract_end_date": "2030-03-16",
        "contract_id": "CN4123587",
        "contract_start_date": "2024-12-20",
        "currency": "AUD",
        "description": "Cape Class Patrol Boats",
        "notice_id": "CN4123587",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/ca6957ea-f848-4424-b649-51de6153687e",
        "procurement_method": "Limited tender",
        "reported_value": "163249349.40",
        "source_hash": "357973f1bb66800c73d62d061440e6896ed167d713fdc041fae8aa154827d6cd",
        "source_modified_at": "2025-01-24T03:59:41Z",
        "source_release_id": "prod-54503d70ceb4454fb05027004e052293-c7a8b1b7e38f3995b51042caa0eeb025",
        "source_url": "https://api.tenders.gov.au/ocds/findById/CN4123587",
        "supplier_name": "AUSTAL SHIPS PTY LTD",
        "title": "0070038162 & 0070040680 & 0070041177"
      },
      {
        "agency_name": "Department of Home Affairs",
        "category_code": "25111500",
        "contract_end_date": "2028-04-02",
        "contract_id": "CN4123587",
        "contract_start_date": "2024-12-20",
        "currency": "AUD",
        "description": "Cape Class Patrol Boats",
        "notice_id": "CN4123587-A1",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/b07c7896-a8a9-476f-b4c3-d5345361c213",
        "procurement_method": "Limited tender",
        "reported_value": "161651012.60",
        "source_hash": "b855c638fbb18293dc3406c4cd21fce6f0178d0ef129e7efd7ea30bbad8b3580",
        "source_modified_at": "2026-07-16T06:11:06Z",
        "source_release_id": "prod-54503d70ceb4454fb05027004e052293-a7876773355f3005957dfb8e584455bd",
        "source_url": "https://api.tenders.gov.au/ocds/findById/CN4123587",
        "supplier_name": "AUSTAL SHIPS PTY LTD (AUD)",
        "title": "0070038162"
      },
      {
        "agency_name": "Department of Home Affairs",
        "category_code": "25111500",
        "contract_end_date": "2030-03-16",
        "contract_id": "CN4123587",
        "contract_start_date": "2024-12-20",
        "currency": "AUD",
        "description": "Cape Class Patrol Boats",
        "notice_id": "CN4123587-A2",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/724c8934-6cf5-4c73-a466-3b252f425de3",
        "procurement_method": "Limited tender",
        "reported_value": "180282533.27",
        "source_hash": "73f570662690ff18f7b7b9335ced88ed417813873d922f718073424454da4648",
        "source_modified_at": "2026-07-16T06:11:06Z",
        "source_release_id": "prod-54503d70ceb4454fb05027004e052293-66c099a0c97633e0bfc7b519750ab779",
        "source_url": "https://api.tenders.gov.au/ocds/findById/CN4123587",
        "supplier_name": "AUSTAL SHIPS PTY LTD (AUD)",
        "title": "0070038162 & 0070040680 & 0070041177"
      },
      {
        "agency_name": "Department of Home Affairs",
        "category_code": "25111500",
        "contract_end_date": "2030-03-16",
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  "disclaimer": "ContractDelta identifies changes in publicly reported procurement records. A change is not evidence of misconduct. Contract amendments can result from legitimate changes in scope, timing, pricing, reporting, or data correction.",
  "generated_at": "2026-07-17T05:22:06Z",
  "schema_version": "1.0",
  "source": {
    "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
    "coverage": {
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      "amended_contracts_selected": 20,
      "amended_contracts_skipped": 831,
      "max_amended_contracts": 20,
      "mode": "bounded_amendments",
      "query_end": "2026-07-20T23:59:59.999999Z",
      "query_start": "2026-07-12T00:00:00Z",
      "selection_method": "Explicit amendment contracts were ranked by current reported value, then source modification time and contract ID. Only the highest-ranked bounded set was processed."
    },
    "license": "https://creativecommons.org/licenses/by/3.0/au/",
    "name": "AusTender OCDS API",
    "publisher": "Australian Government Department of Finance"
  }
}